There are Libraries on most campuses of the University as well as an off-site Store.
When you use the catalog, you can request books and articles across the various locations.
If the item Location is at another campus (not the campus you are on), you can use the Request Button to have the book sent to a library on your campus. If you are after an article from a journal held at another campus, you can request that a copy of the article be sent to you.

